Science

Friday, 20 February 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

Did you know?

Ganymede
The surface temperature of the moon is about 110 K.
Moon
The moon was formed about 4527 billion years ago, or about 30 to 50 million years after the formation of the solar system.
Anorexia Nervosa
Anorexia is a Greek term meaning denial of appetite, or loss of appetite.
The adjective “nervosa” indicates the functional and unrestricted nature of the disorder.
Earth
The length of the day on Earth is constantly increasing.
In the first million years of the Earth's existence, the day lasted only four hours. From the very b ...
Aurora
Auroras take many shapes. They can appear in the form of colored rays, streaks, ribbons, curtains, crowns, arcs, and others.
Mushrooms
All fungi are foreign organisms, they can only occur in habitats containing organic compounds.
Many species for their lives require a small amount of them. They can be saprophytes feeding on dead organic matter, or parasites developing at the expense of other, living organisms.
Graphene
Already in the 19th century, scientists speculated that graphite was composed of layers.
This was only proven through research at the beginning of the 20th century, In 1947, the first theor ...
Amber
A trade route between the North Sea, the Baltic Sea to the Mediterranean Sea, was called an Amber Road.
It was established to transport amber between Northern and Southern Europe.
Amber
Baltic amber has been found in the tombs of Egyptian pharaohs.
Scientists claim amber was supposed to represent the tears of Ra—the Egyptian god of the Sun.
Phobos
Phobos’ orbit decreases by about 1,8 meters every 100 years.
In about 50 million years, the moon could be torn apart by Mars’ tidal forces or fall to its surface.